The writer gave the same kind of test for both the experimental class and the controlled class.
5. The Instrument of the Research
The research instruments used by the writer in collecting data are - Pre-Test
The writer did the pre-test when the teacher for the first time entered the class. It is aimed to know the students ability in material of reading
comprehension which given by the writer. - Post-test
Post-test was done in order to know the changeable on stud ent’s
reading comprehension material between learning process with explanatory method and learning process through small group
discussion.
6. The Techniques of Data Analysis
After getting data from the experiment and control class, the writer used comparative technique
38
. The comparative techniques to evaluate hypothesis concerning the differences between the two examined methods
in teaching learning process by using explanatory method and small group discussion.
The formula is as follows :
t
o
=
M1-M2
{ x1²+ ∑x2²} { N1+N2}
N1+N2-2 {N1 x N2}
The procedure of calculation as formula : a. Determining mean Variable X1 with formula:
M1 =
�1 �1
b. Determining mean Variable X2 with formula:
1
Drs.Anas Sudijono, Pengantar Statistik Pendidikan, Jakarta: PT Raja Grafindo Persada, 1994, p.317.
M2 =
�2 �
c. Determining deviations Variable X
1
with formula: X
1
= X1 – M1
d. Determining deviations Variable X
2
with formula: X
2
= X2 – M2
Where: M1
: Mean of post-test of experimental class M2
: Mean of post-test of control class ∑X
1 2
: Sum of square deviation square in the experimental class ∑X
2 2
: Sum of square deviation square in the control class N1
: Number of students of experimental class N2
: Number of students of control class df
: Degree of Freedom df
: N1 + N2 – 2
B. THE FINDINGS OF THE RESEARCH
1. The Description of Data
The writer conducted the library research and field research. The writer obtained the result of the students’ score in experiment and controlled class. The
writer held field research observes the teaching-learning process and the writer got the data from pre-test and post-test. The pre-test was given before the lesson
begins and the post-test was given after the lesson finished. In this chapter the writer compares the achievement of pre-test and post-
test; to know whether using small group discussion effective in reading comprehension. The scores will calculated and analysis the data.
2. The Analysis of Data
The writer makes make the table of the students’ score in order to know the result of the research. In the following, the writer gives the report concerning
the score of the students’ score. Here with the result of the test are presented in the following tables.
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